Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 32, Pages 17954-17962Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b04667
Keywords
solvothermal; nonaqueous synthesis; semiconductor photocatalyst; water splitting; sunlight
Funding
- National Plan for Science, Technology and Innovation (MAARIFAH), King Abdulaziz City for Science and Technology (KACST) through the Science & Technology Unit at King Fahd University of Petroleum & Minerals (KFUPM), Kingdom of Saudi Arabia [10-NAN1387-04]
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Due to exciting catalytic activity and selectivity, tailoring of nano catalysts consisting of preferred crystal facets and desired structural properties remains at the forefront of materials engineering. A facile one-step nonhydrolytic solvothermal synthesis of a nanocomposite of reduced graphene oxide and one-dimensional nitrogen-doped Nb2O5 (N-NbOx) with exposed (001) facet is described. Triethylamine performed the dual role as nitrogen source and capping agent to control the size and unidirectional growth of Nb2O5 nanocrystallites. The nano composite showed efficient visible-light-mediated (lambda > 420 nm) water splitting in a photoelectrochemical cell. A plausible mechanism for the formation of N-NbOx nanorods and improved photoelectrochemical efficacy in terms of their oriented growth is proposed.
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